Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5862169 | Float glass production | David Martlew, Robert Trevelyan, Graham Unwin | 1999-01-19 |
| 5827341 | Method and apparatus for making glass | Robert Trevelyan, Andrew Michael Keeley, David Martlew | 1998-10-27 |
| 5370723 | Glass melting furnace with control of the glass flow in the riser | Robert Trevelyan | 1994-12-06 |
| 5194081 | Glass melting process | Robert Trevelyan | 1993-03-16 |
| 5022905 | Method and apparatus for coating glass | Barry T. Grundy, Edward Hargreaves | 1991-06-11 |